-2.55% is the change from 432 to 421
Calculation steps:
[( 421 - 432 ) ÷ 432] x 100 = -2.55%
Formula
Percentage change = [(421 - 432) / 432] x 100
Subtract the new number by the original number
421 - 432 = -11
-11 ÷ 432 = -0.02546296296296296
-0.02546296296296296 x 100 = -2.55%